Magma Expansion Upgrade Failed... :(

Hi All,
Well, the worst case scenario actually happened. I bought a G5 Dual 2.0 and a Magma (used on EBAY). I have two PCI Firewire 800 cards in the Mac and attached to those are two WiebeTech dual drives. I was busy working on a project and I got two "real time system errors" and the video stalled. :(